The document outlines the requirements for revising a week 4 key assignment by incorporating insights from discussion board posts and instructor feedback. It specifically asks for a detailed explanation of the purposes of DNA testing, law enforcement's evolving role in enabling it, and the application of the best evidence rule in relation to DNA evidence. Additionally, it emphasizes the importance of referencing all sources using APA style before submission.

1. Revise and amend your Week 4 Key Assignment by adding what
you learned in the Discussion Board posts following the task, as
well as taking into consideration your instructor’s comments.
Address the following, and add your responses to your Key
Assignment final draft:
What are the purposes of DNA testing? Explain in detail.
Provide examples where necessary.
What is law enforcement’s role in making DNA testing possible
today when it was not possible 15–20 years ago? Explain.
Provide examples when necessary.
Discuss how the best evidence rule can come into play when
dealing with DNA evidence.
Be sure to reference all sources using APA style.
Please submit your assignment.